IT
Itis io.github.mrfentmen/itis-mcp Keyless MCP server for ITIS taxonomy: scientific names, TSNs, hierarchy, common names.
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Science and research Official MCP Registry · npm Local 49 a week MIT
IC
Icdwise io.github.qinisolabs/icdwise Verified ICD-10-CM code lookup & validation for AI agents — official descriptions, not guesses.
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Science and research Official MCP Registry · npm Local 49 a week APACHE-2.0
CE
Census io.github.mrfentmen/census-mcp US Census population data by nation, state, and county. Requires a free Census API key.
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Science and research Official MCP Registry · npm Local 48 a week MIT
RP
Rcsb Pdb io.github.mrfentmen/rcsb-pdb-mcp Look up protein structures and search the RCSB Protein Data Bank. No key required.
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Science and research Official MCP Registry · npm Local 47 a week MIT
RX
Rxnav io.github.mrfentmen/rxnav-mcp Drug names, identifiers, and properties from NIH RxNav. No key required.
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Science and research Official MCP Registry · npm Local 47 a week MIT
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Literature search, GB/T 7714/APA citations and BibTeX via Crossref, OpenAlex, Semantic Scholar.
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Science and research Official MCP Registry · npm Local 46 a week MIT
KA
Katzilla io.github.codeislaw101/katzilla 300+ free public & government data sources behind one API key, for AI agents.
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Science and research Official MCP Registry · npm Local 12 a week MIT
DE
Desearch io.github.Desearch-ai/mcp-desearch AI search (Reddit, HN, arXiv, Wikipedia), X and web search, page extraction, X data, People Search.
100% up · 30 days
Web search and scraping Official MCP Registry · npm Local Remote 45 a week MIT
OO
OokCite io.github.TurtleTech-ehf/ookcite-mcp Catch fabricated citations: verify DOIs/ISBNs and format them in 2900+ CSL styles.
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Science and research Official MCP Registry · npm · crates.io Local 45 a week MIT
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Korean equity research, analyst revisions, kimchi premium and news via x402.
100% up · 30 days
Finance and payments Official MCP Registry · npm Local Remote 45 a week MIT
EU
Eurostat io.github.mrfentmen/eurostat-mcp European statistics datasets from Eurostat. No key required.
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Science and research Official MCP Registry · npm Local 45 a week MIT
UN
Uniprot io.github.mrfentmen/uniprot-mcp Protein sequences, names, and functions from UniProt. No key required.
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Science and research Official MCP Registry · npm Local 45 a week MIT
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Governed ClickHouse MCP server for semantic metrics, datasets, Claude, Cursor, and AI agents
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Science and research npm Local 4.6k a week APACHE-2.0
CR
Cruncher io.github.islobodan/cruncher-mcp Scientific calculator MCP server with 43 tools: arithmetic, trig, stats, unit conversion.
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Utilities Official MCP Registry · npm Local 44 a week MIT
PL
Plos io.github.mrfentmen/plos-mcp Open research from PLOS. No key required.
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Science and research Official MCP Registry · npm Local 44 a week MIT
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JSON in. Chart or Page out. Same picture forever. Scientific plots included.
100% up · 30 days
Data warehouses and analytics Official MCP Registry · npm Local Remote 43 a week AGPL-3.0-ONLY
FC
Fcc io.github.mrfentmen/fcc-mcp FCC Census Block API: find census block, state, county and tract for coordinates.
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Maps and location Official MCP Registry · npm Local 43 a week MIT
RE
Redacta io.github.nickjlamb/redacta-mcp Keep patient identifiers out of AI agent context — a local privacy boundary for healthcare agents.
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Science and research Official MCP Registry · npm Local 43 a week MIT-0
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Langfuse public API (Cloud and self-hosted): traces, prompts, datasets and gated writes.
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Monitoring and observability Official MCP Registry · npm · Go modules Local 43 a week APACHE-2.0
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DME billing and medical coding: code lookup, DMEPOS fee schedules, Medicare prior-auth checks
100% up · 30 days
Finance and payments Official MCP Registry · npm Local Remote 42 a week MIT